One Cycle Control Controller

Description:

One-Cycle Control is a simple and versatile PWM technique applied to switching converters [1, 2]. This technique takes advantage of the pulsed and nonlinear nature of switching converters and achieves instantaneous dynamic control of the average value of a switched variable, e.g., voltage or current; more specifically it takes only one switching cycle for the average value of the switched variable to reach a new steady-state after a transient. There is no steadystate error nor dynamic error between the control reference and the average value of the switched variable. This method provides fast dynamic response, excellent power source perturbation rejection, robust performance, and automatic switching error correction.

Applications:

One Cycle Control is used in power factor corrected (PFC) rectifiers, active power filters (APF) and grid-connected inverters.